print help by default

myaaaaaaaaa · Nov 25, 2024 · dc75172 · dc75172
1 parent c41101f
commit dc75172
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Showing 2 changed files with 7 additions and 3 deletions.
diff --git a/prog.go b/prog.go
@@ -107,6 +107,9 @@ func (p *Program) Main() (rtErr error) {
 	defer catch[failError](&rtErr)
 
 	var f flags
+	if p.StdinIsTerminal && len(p.Args) == 0 {
+		p.Args = []string{"-h"}
+	}
 	f.populate(p.Args)
 
 	files := map[string]any{}

diff --git a/prog_test.go b/prog_test.go
@@ -31,9 +31,10 @@ func testRun(t *testing.T, stdin, want string, p *Program) {
 }
 
 func TestProgram(t *testing.T) {
-	testRun(t, "[]  []", "[] []", &Program{})
 	testRun(t, "[]  [}", "error", &Program{})
-	testRun(t, "[]  []", "{}", &Program{StdinIsTerminal: true})
+	testRun(t, "[]  []", "[] []", &Program{})
+	testRun(t, "[]  []", "[] []", &Program{Args: []string{"."}})
+	testRun(t, "[]  []", "{}", &Program{Args: []string{"."}, StdinIsTerminal: true})
 
 	testRun(t, "[10]", "[10]", &Program{})
 	testRun(t, "[10]", "[10]", &Program{Args: []string{"-j"}})
@@ -71,7 +72,7 @@ func TestOpen(t *testing.T) {
 		"e.txt":     "q\nw\ne\nr\nt\ny",
 	}
 
-	p := Program{StdinIsTerminal: true}
+	p := Program{Args: []string{"."}, StdinIsTerminal: true}
 	testRun(t, "", "{}", &p)
 
 	p.Open = toFS(testFiles, nil).Open